Stop down loading your 270. ive got one RA, in a 243 compact it shoots fine, is it under loaded no way! reloads stayed consistant biggest 3 shot groups at 100 yds were 1 inch. Clean your barrel, aren't you proud of your rifle? 1st cousin bought a RA ss/snth stock 270 with its barrel still green it loved Barnes tsx 140's I reloaded for it. Remington factory loads are a Joke when you chronograph them , i'm a reloader and i'm after performance or why bother. By the way the 2 RA's are stock rifles mentioned above. If your down loading for your son that's a different matter. shooting at steel is a Confidence builder, its great practice if done in a SAFE manner.